Re: [HACKERS] Re: [SQL] Column name's length

From: Philip Warner <pjw(at)rhyme(dot)com(dot)au>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: [HACKERS] Re: [SQL] Column name's length
Date: 1999-06-03 03:00:57
Message-ID: 3.0.5.32.19990603130057.00a35ba0@mail.rhyme.com.au
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At 09:16 2/06/99 -0400, you wrote:
>
>Well, it's only good if the system will get rid of the objects when
>the user drops the owning table. This is true for indexes but AFAIK
>it is not yet true for sequences. So if we go with pg_ prefix now,
>there will be *no* way short of superuser privilege to get rid of the
>sequence object for a deleted table that had a serial field.
>
>Also, this will break pg_dump, which will have no good way to restore
>the state of a serial sequence object. (CREATE SEQUENCE pg_xxx will
>fail, no?)

I know I'm probably out of my depth here, but couldn't pg_dump ignore everything with a pg_* prefix? It can (safely?) assume any 'system' structures will be created as a result of some other user-based definition it is dumping?

[If you beat me about the head, I'll shut up]

Philip Warner.

P.S. I also like the idea of creating the 'system' structures with readily and reliably identifiable names, since it potentially gives the option of the user choosing to 'hide' them. As a user with about 20000 blobs to load, the output of a \d is pretty cumbersome.

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